hybrid drive system
A drive system and hybrid technology, applied in hybrid vehicles, engine-driven traction, power devices, etc., can solve problems such as the decline in the life of one-way clutches and the reliability of the durability of hybrid drive systems, and achieve suppression Excellent effect of switching and durability
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no. 1 Embodiment approach
[0038] Figure 1 to Figure 5 A vehicle hybrid drive system according to a first embodiment of the present invention is shown. In addition, although the present embodiment was exemplified as a system configuration in which the engine is placed horizontally, it is of course possible to have a system configuration in which the engine is arranged upright.
[0039] First, the structure will be described.
[0040] like figure 1 As shown, the hybrid drive system 1 of the present embodiment rotationally drives left and right drive wheels 5L, 5R as wheels for driving the vehicle. This hybrid drive system 1 includes an engine 11 as an internal combustion engine, and motor generators MG1 (first motor) and motor generators MG2 (second motor) as electric motors capable of generating electricity, respectively, as a plurality of drive sources different from each other. .
[0041] Here, the engine 11 is a multi-cylinder internal combustion engine, for example, a 4-stroke gasoline engine. ...
no. 2 Embodiment approach
[0114] Image 6 A flow of the oil pump input switching suppression control routine executed in the hybrid drive system according to the second embodiment of the present invention is shown.
[0115] In the present embodiment, when either of the input rotating shafts 51 and 52 enters the constant velocity region Rv relative to the other, the HV-ECU 110 of the control device 100 does not change the power command value Pw required by the engine 11 , to change the engine speed or the engine output torque corresponding to the engine speed.
[0116] In this case, HV-ECU 110 has a map capable of selecting a plurality of different specified values Ne for the command value Pw of the required power, and engine ECU 120 may also have a built-in map for selecting different specified values Ne for the command value Pw of the required power. When the value is Ne, control values such as ignition timing, valve opening and closing timing, and throttle opening can be determined correspondi...
no. 3 Embodiment approach
[0125] Figure 7 A flow of the oil pump input switching suppression control routine executed by the hybrid drive system according to the third embodiment of the present invention is shown.
[0126] In the present embodiment, in order to change the discharge amount of HV battery 150 per unit time, HV-ECU 110 installs auxiliary equipment such as an electric compressor for refrigerant compression of an air conditioner (air conditioner), etc. Changes in the operating states of other electric actuators and the like in the vehicle slightly change the consumed electric power, thereby increasing the relative rotational speeds of the input rotary shafts 51 and 52 .
[0127] For example, by changing the set temperature of the air conditioner within a small change temperature range (for example, within a range of 0.5° C.) in which the driver and other passengers do not actually feel the change, the temperature of the HV battery 150 per unit time can be changed. The amount of discharge i...
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